What Causes Lichen Planus?

March 11, 2024 | by Yashaswi Pathakamuri | Posted in FAQ's

Lichen planus

Lichen planus is a chronic inflammatory condition that can affect the skin, mucous membranes, nails, and hair. The exact cause of lichen planus is not well understood, but it is believed to be related to an autoimmune reaction. The immune system, for reasons that are not clear, targets and attacks the skin and mucous membranes.

Several factors may contribute to the development of lichen planus, including:

  • Autoimmune factors: Lichen planus is thought to involve an abnormal immune response in which the immune system mistakenly attacks the body’s own cells. The exact trigger for this response is unknown.
  • Genetic predisposition: There may be a genetic predisposition to lichen planus, as it sometimes runs in families. However, a clear genetic link has not been identified.
  • Viral infections: Some cases of lichen planus may be triggered or exacerbated by certain viral infections, such as hepatitis C.
  • Stress: While not a direct cause, stress may contribute to the exacerbation of lichen planus symptoms in some individuals.
  • Certain medications: Some medications have been associated with the development of lichen planus or may trigger flare-ups. These can include certain blood pressure medications, nonsteroidal anti-inflammatory drugs (NSAIDs), and others.
  • Contact with certain chemicals: Exposure to certain chemicals or allergens may contribute to the development of lichen planus in some cases.

Lichen planus can manifest in different forms, including papules, plaques, or lesions on the skin, as well as white, lacy patches or sores in the mouth and genital areas. The condition is not contagious.

Diagnosing lichen planus typically involves a clinical examination by a healthcare professional. In some cases, a skin biopsy may be performed to confirm the diagnosis. Treatment options vary depending on the severity and location of the lesions and may include topical or oral corticosteroids, antihistamines, or other immunosuppressive medications.

If you suspect you have lichen planus or are experiencing symptoms, it’s important to consult with a healthcare provider for an accurate diagnosis and appropriate management plan.

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